UAD Quality and Condition Definitions
Key Takeaways
Q1 through Q6 describe overall construction quality.
C1 through C6 describe overall property condition.
Qualifying recycled components do not automatically prevent a new home from meeting C1.
Last updated: October 2026
UAD Quality and Condition Definitions
Important
Under the Uniform Appraisal Dataset (UAD) established by Fannie Mae and Freddie Mac under the direction of the Federal Housing Finance Agency (FHFA), appraisers must employ standardized, objective alphanumeric definitions for Quality (Q1 through Q6) and Condition (C1 through C6). Use the prescribed ratings and definitions in required fields, with factual explanation; an adjective is not a substitute for the required rating. Mischaracterizing a property's UAD rating distorts automated collateral underwriting algorithms and exposes the appraiser to disciplinary and repurchase liabilities.
The Uniform Appraisal Dataset (UAD) Framework
Prior to the implementation of the UAD, residential appraisal reports contained wide regional variations in descriptive adjectives. One appraiser's "good condition" was another appraiser's "average condition." The UAD established uniform, nationwide definitions that allow secondary mortgage market automated underwriting systems (such as Fannie Mae's Desktop Underwriter / Collateral Underwriter and Freddie Mac's Loan Product Advisor) to objectively analyze property data.
The Fundamental Independence of Quality vs. Condition
A cardinal rule of residential valuation is the absolute conceptual independence of Quality and Condition:
- Quality (Q Ratings): Reflects the initial structural engineering, materials, architectural sophistication, interior finishes, and craftsmanship incorporated into the improvements at the time of original construction. Aging alone does not necessarily change quality, but substantial alterations can change the overall quality rating. A luxury custom residence constructed with imported limestone, copper gutters, and custom walnut cabinetry is a Q1 or Q2 property on the day it is built, and ordinary wear affects its condition rather than automatically changing its original construction quality. Evaluate the actual whole property on the relevant date, including substantive alterations.
- Condition (C Ratings): Reflects the ongoing maintenance, physical deterioration, wear and tear, and physical state of repair of the improvements at the effective date of appraisal. Condition is dynamic and changes continuously. If that same Q2 luxury residence is neglected, its condition rating will decline from C1 (when new) to C3, C4, C5, or C6 as deferred maintenance accumulates.
UAD Quality Ratings: Q1 through Q6
Quality ratings evaluate the overall quality of construction, architectural design, materials, and workmanship.
| Quality Rating | Architectural Design | Materials & Workmanship | Interior Finishes & Cabinetry | Exterior Detailing |
|---|---|---|---|---|
| Q1 | Unique, individual architect design; high-style custom estate. | Highest grade available; exceptional artisan craftsmanship. | Bespoke furniture-grade cabinetry, imported stone, elaborate multi-piece millwork. | Multi-faceted rooflines, custom fenestration, premium slate/copper/cut stone. |
| Q2 | Custom design for specific client or high-end custom builder. | High quality throughout; superior craftsmanship and materials. | Custom solid hardwood cabinetry, granite/quartz slab, extensive crown moldings. | Distinctive architectural detailing, high-grade stone/brick veneer, heavy architectural roof. |
| Q3 | Upgraded standard design; higher-end tract or semi-custom home. | Upgraded builder-grade materials; good quality workmanship. | Solid surface countertops, wood cabinetry with decorative detailing, hardwood/tile flooring. | Enhanced exterior trim, multi-pane upgraded windows, architectural shingles. |
| Q4 | Standard builder-grade tract design from stock plan books. | Standard materials meeting building codes; acceptable workmanship. | Stock wood or laminate cabinets, post-formed laminate counters, carpet/vinyl flooring. | Simple rectangular/box massing, standard vinyl/aluminum windows, 3-tab or basic shingles. |
| Q5 | Economy-grade design; minimal cost orientation. | Inexpensive, basic materials meeting minimum building codes. | Inexpensive stock cabinets, plastic laminate counters, basic vinyl sheet flooring. | Plain utilitarian box massing, minimal window count, inexpensive siding materials. |
| Q6 | Substandard; may lack formal plans or professional trades. | Substandard, low-cost, or salvaged materials; low workmanship. | Minimal or absent finishes; makeshift counters, raw subflooring, exposed framing. | Non-compliance with building codes; unfinished exterior, makeshift roof covering. |
Detailed Quality Descriptions
- Q1 (Architect-Designed Luxury Estates): Dwellings are individually designed by an architect for a specific client. Workmanship throughout is of exceptional quality, reflecting artisan techniques, hand-carved millwork, and custom masonry. High-end architectural embellishments are present throughout the interior and exterior. Materials are the highest quality available, including imported marbles, exotic hardwoods, commercial-grade chef's kitchens, bespoke audio/automation, and heavy structural timber or stone elements.
- Q2 (Custom High-End Residences): Often custom-designed for an individual owner or built by high-end custom homebuilders on estate sites. High-quality materials and craftsmanship are evident throughout. Exterior detailing includes substantial brick, natural stone, or heavy stucco cladding, detailed roof pitches, and high-performance windows. Interiors feature solid hardwood doors, multi-piece crown moldings, custom cabinetry, and high-end plumbing and lighting fixtures.
- Q3 (Upgraded Semi-Custom & High-Tract): Residences feature upgraded architectural plans with significant exterior articulation and roofline variations. Materials and workmanship are above standard builder grade. Kitchens feature solid wood cabinetry, granite or quartz countertops, and stainless steel appliances. Bathrooms feature ceramic tile surrounds and dual vanities. Flooring includes quality hardwood, porcelain tile, and upgraded carpeting.
- Q4 (Standard Builder-Grade Tract Housing): The most common quality rating in modern suburban subdivisions. Meets standard building codes with basic aesthetic appeal. Straightforward rooflines and exterior facades with vinyl, engineered wood, or partial brick veneer. Interiors feature standard stock cabinetry, post-formed laminate countertops, hollow-core interior doors, and builder-grade carpet and vinyl flooring.
- Q5 (Economy Construction): Designed to achieve the lowest construction cost while meeting minimum statutory building codes. Simple architectural shapes (basic rectangular boxes or plain ranches) with minimal exterior ornamentation. Inexpensive vinyl siding, basic 3-tab asphalt shingles, inexpensive stock cabinetry, utilitarian plumbing fixtures, and minimal interior trim.
- Q6 (Substandard Construction): Improvements constructed with substandard, low-grade, or salvaged materials that frequently fail to meet basic building codes. Workmanship shows significant structural and cosmetic defects, including out-of-square framing, poorly installed mechanical systems, or unpermitted makeshift additions. Essential plumbing, electrical, or heating systems may be partially incomplete or non-functional.
UAD Condition Ratings: C1 through C6
Condition ratings evaluate the overall physical condition, maintenance history, and structural integrity of the improvements at the time of inspection.
| Condition Rating | Maintenance Status | Component Wear & Aging | Structural Soundness | Habitable Status |
|---|---|---|---|---|
| C1 | Brand new construction; never occupied. | Meets the new, unoccupied C1 definition; qualifying recycled components may be allowed. | Perfect; completely sound. | Fully ready for initial occupancy. |
| C2 | Virtually new or comprehensively remodeled/renovated. | No deferred maintenance; all components new or restored to like-new. | Excellent structural integrity. | Fully habitable and modernized. |
| C3 | Well-maintained with normal ongoing upkeep. | Normal wear and tear on short-lived items; functionally sound. | Fully sound; no structural issues. | Fully habitable; market acceptable. |
| C4 | Minor deferred maintenance evident. | Minor wear; cosmetic updating needed; components functionally adequate. | Structurally sound. | Habitable; minor cosmetic updates needed. |
| C5 | Obvious deferred maintenance; significant repairs needed. | Multiple major components near or past economic life; needs repair. | Habitable, but components compromised. | Habitable, but requires major rehabilitation. |
| C6 | Substantial damage or severe structural deferred maintenance. | Severe physical deterioration; structural or life-safety defects. | Unsound; safety and structural integrity impaired. | Inhabitable or hazardous to health/safety. |
Detailed Condition Descriptions
- C1 (New Construction): The improvement has been newly constructed and has never been previously occupied, consistent with the complete C1 definition. The structure and components meet the C1 definition; appropriately rehabilitated or remanufactured recycled components can qualify under the stated policy. A warranty is not the definition. There is zero physical deterioration.
- C2 (Like-New / Comprehensively Renovated): The dwelling is either virtually new (occupied for a very short period with zero wear) or has undergone a comprehensive, top-to-bottom renovation. All major components—are new or recently repaired, refinished, or rehabilitated consistent with the whole-property definition. There is zero deferred maintenance.
- C3 (Well-Maintained): The dwelling has been well-maintained and exhibits only normal wear and tear consistent with its age. All major building components and mechanical systems are functionally adequate. Some short-lived components (such as interior paint, carpet, or water heaters) show expected aging, but there is no deferred maintenance that requires immediate repair.
- C4 (Minor Deferred Maintenance): The dwelling exhibits minor deferred maintenance and visible wear and tear. All major building components are functionally adequate and structurally sound, but the property requires minor cosmetic or physical updating (such as exterior repainting, worn carpeting replacement, minor roof granule loss, or minor plumbing fixture updates). Overall livability and marketability are not significantly compromised.
- C5 (Obvious Deferred Maintenance & Rehabilitation Needed): The dwelling shows obvious deferred maintenance across multiple major components. One or more primary building systems (roof covering, HVAC unit, plumbing lines, siding) require substantial repair, replacement, or rehabilitation. The property remains habitable, but overall marketability is significantly impaired, and deferred maintenance will accelerate structural decay if left unaddressed.
- C6 (Substantial Damage Affecting Safety, Soundness, or Structural Integrity): The dwelling has substantial damage or severe deferred maintenance that directly impacts the safety, soundness, or structural integrity of the improvements. Examples include active foundation failure, sagging roof framing, severe subterranean termite damage, extensive fire or water intrusion damage, hazardous exposed electrical wiring, or missing essential heating and plumbing fixtures. The property is uninhabitable or presents immediate life-safety hazards to occupants.
Sections you finish are checked off in the contents.